ASTROSAT CZTI

Data Quality Report

Orbit 20230811_C07_001T10_9000005814_level2

Creation date: 2023-08-16T11:14:38.737925
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1C07_001T10_9000005814cztM0_level2.fits modeM0/AS1C07_001T10_9000005814cztM0_level2_quad_clean.evt
Size (bytes)715,599,3601,045,422,720
Size682.4 MB 997.0 MB
Events in quadrant A4,291,4966,858,230
Events in quadrant B4,076,2466,778,591
Events in quadrant C4,152,0266,530,001
Events in quadrant D3,558,6105,906,279

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01761590
B01728200
C01654220
D02143560

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03150
B03150
C03150
D03150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016680
B016680
C016680
D016680

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A815782000.245164%
B815787230.886268%
C81572830.101751%
D8157527183.331903%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 113035 81577 0 0 0.00% 0.00%
B 113035 81575 0 0 0.00% 0.00%
C 113035 81575 0 0 0.00% 0.00%
D 113035 81552 0 0 0.00% 0.00%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 7 110 3681 9.39 1119 1054 279.9
A 0 29 3587 9.05 1119 1054 279.9
A 9 19 3472 8.64 1119 1054 279.9
B 2 9 3541 12.08 1079 1032 207.6
B 3 80 3032 9.63 1079 1032 207.6
B 3 17 2846 8.74 1079 1032 207.6
C 1 81 3592 9.17 1096 1025 279.8
C 1 80 3355 8.33 1096 1025 279.8
C 3 202 3331 8.24 1096 1025 279.8
D 10 189 2733 6.61 1020 931 272.8
D 7 3 2688 6.44 1020 931 272.8
D 4 160 2630 6.23 1020 931 272.8

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter